One issue to be aware of is that you must keep databases synchronized when bookings are made, or create a separate process for the reservation system.
这里要清楚的一个问题是，在进行预订时，必须保持数据库同步，或者为预订系统创建一个单独的进程。
2
Furthermore, process modeling in SOAD must be synchronized with design-level use case modeling, and answers to the BPEL-related questions must be given.
此外，SOAD中的流程建模必须与设计层用况建模保持同步，并且必须给出与BPEL有关的问题的答案。
3
If you require the databases to be synchronized then you must plan for this process.